A Ruby library for verifying and serving OpenID identities. Features:

 * Easy to use API for verifying OpenID identites - OpenID::Consumer
 * Support for serving OpenID identites - OpenID::Server
 * Does not depend on underlying web framework
 * Supports multiple storage mechanisms (Filesystem, ActiveRecord, Memory)
 * Example code to help you get started, including:
   * Ruby on Rails based consumer and server
   * OpenIDLoginGenerator for quickly getting creating a rails app that uses
     OpenID for authentication
   * ActiveRecordOpenIDStore plugin
 * Comprehensive test suite
 * Supports both OpenID 1 and OpenID 2 transparently

Homepage:
https://github.com/openid/ruby-openid
